1 /* 2 * Copyright (c) 2013, 2016, Oracle and/or its affiliates. All rights reserved. 3 * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER. 4 * 5 * This code is free software; you can redistribute it and/or modify it 6 * under the terms of the GNU General Public License version 2 only, as 7 * published by the Free Software Foundation. 8 * 9 * This code is distributed in the hope that it will be useful, but WITHOUT 10 * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or 11 * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License 12 * version 2 for more details (a copy is included in the LICENSE file that 13 * accompanied this code). 14 * 15 * You should have received a copy of the GNU General Public License version 16 * 2 along with this work; if not, write to the Free Software Foundation, 17 * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA. 18 * 19 * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA 20 * or visit www.oracle.com if you need additional information or have any 21 * questions. 22 * 23 */ 24 25 #ifndef CPU_X86_VM_STUBROUTINES_X86_HPP 26 #define CPU_X86_VM_STUBROUTINES_X86_HPP 27 28 // This file holds the platform specific parts of the StubRoutines 29 // definition. See stubRoutines.hpp for a description on how to 30 // extend it. 31 32 static bool returns_to_call_stub(address return_pc) { return return_pc == _call_stub_return_address; } 33 34 enum platform_dependent_constants { 35 code_size1 = 20000 LP64_ONLY(+10000), // simply increase if too small (assembler will crash if too small) 36 code_size2 = 35300 LP64_ONLY(+10000) // simply increase if too small (assembler will crash if too small) 37 }; 38 39 class x86 { 40 friend class StubGenerator; 41 friend class VMStructs; 42 43 #ifdef _LP64 44 private: 45 static address _get_previous_fp_entry; 46 static address _get_previous_sp_entry; 47 48 static address _f2i_fixup; 49 static address _f2l_fixup; 50 static address _d2i_fixup; 51 static address _d2l_fixup; 52 53 static address _float_sign_mask; 54 static address _float_sign_flip; 55 static address _double_sign_mask; 56 static address _double_sign_flip; 57 58 static address _method_entry_barrier; 59 60 public: 61 62 static address method_entry_barrier() { 63 return _method_entry_barrier; 64 } 65 66 static address get_previous_fp_entry() { 67 return _get_previous_fp_entry; 68 } 69 70 static address get_previous_sp_entry() { 71 return _get_previous_sp_entry; 72 } 73 74 static address f2i_fixup() { 75 return _f2i_fixup; 76 } 77 78 static address f2l_fixup() { 79 return _f2l_fixup; 80 } 81 82 static address d2i_fixup() { 83 return _d2i_fixup; 84 } 85 86 static address d2l_fixup() { 87 return _d2l_fixup; 88 } 89 90 static address float_sign_mask() { 91 return _float_sign_mask; 92 } 93 94 static address float_sign_flip() { 95 return _float_sign_flip; 96 } 97 98 static address double_sign_mask() { 99 return _double_sign_mask; 100 } 101 102 static address double_sign_flip() { 103 return _double_sign_flip; 104 } 105 #else // !LP64 106 107 private: 108 static address _verify_fpu_cntrl_wrd_entry; 109 110 public: 111 static address verify_fpu_cntrl_wrd_entry() { return _verify_fpu_cntrl_wrd_entry; } 112 113 #endif // !LP64 114 115 private: 116 static address _verify_mxcsr_entry; 117 // shuffle mask for fixing up 128-bit words consisting of big-endian 32-bit integers 118 static address _key_shuffle_mask_addr; 119 120 //shuffle mask for big-endian 128-bit integers 121 static address _counter_shuffle_mask_addr; 122 123 // masks and table for CRC32 124 static uint64_t _crc_by128_masks[]; 125 static juint _crc_table[]; 126 // table for CRC32C 127 static juint* _crc32c_table; 128 // swap mask for ghash 129 static address _ghash_long_swap_mask_addr; 130 static address _ghash_byte_swap_mask_addr; 131 132 // upper word mask for sha1 133 static address _upper_word_mask_addr; 134 // byte flip mask for sha1 135 static address _shuffle_byte_flip_mask_addr; 136 137 //k256 table for sha256 138 static juint _k256[]; 139 static address _k256_adr; 140 #ifdef _LP64 141 static juint _k256_W[]; 142 static address _k256_W_adr; 143 static julong _k512_W[]; 144 static address _k512_W_addr; 145 // byte flip mask for sha512 146 static address _pshuffle_byte_flip_mask_addr_sha512; 147 // Masks for base64 148 static address _base64_charset; 149 static address _bswap_mask; 150 static address _gather_mask; 151 static address _right_shift_mask; 152 static address _left_shift_mask; 153 static address _and_mask; 154 static address _url_charset; 155 #endif 156 // byte flip mask for sha256 157 static address _pshuffle_byte_flip_mask_addr; 158 159 //tables common for LIBM sin and cos 160 static juint _ONEHALF[]; 161 static address _ONEHALF_adr; 162 static juint _P_2[]; 163 static address _P_2_adr; 164 static juint _SC_4[]; 165 static address _SC_4_adr; 166 static juint _Ctable[]; 167 static address _Ctable_adr; 168 static juint _SC_2[]; 169 static address _SC_2_adr; 170 static juint _SC_3[]; 171 static address _SC_3_adr; 172 static juint _SC_1[]; 173 static address _SC_1_adr; 174 static juint _PI_INV_TABLE[]; 175 static address _PI_INV_TABLE_adr; 176 static juint _PI_4[]; 177 static address _PI_4_adr; 178 static juint _PI32INV[]; 179 static address _PI32INV_adr; 180 static juint _SIGN_MASK[]; 181 static address _SIGN_MASK_adr; 182 static juint _P_1[]; 183 static address _P_1_adr; 184 static juint _P_3[]; 185 static address _P_3_adr; 186 static juint _NEG_ZERO[]; 187 static address _NEG_ZERO_adr; 188 189 //tables common for LIBM sincos and tancot 190 static juint _L_2il0floatpacket_0[]; 191 static address _L_2il0floatpacket_0_adr; 192 static juint _Pi4Inv[]; 193 static address _Pi4Inv_adr; 194 static juint _Pi4x3[]; 195 static address _Pi4x3_adr; 196 static juint _Pi4x4[]; 197 static address _Pi4x4_adr; 198 static juint _ones[]; 199 static address _ones_adr; 200 201 public: 202 static address verify_mxcsr_entry() { return _verify_mxcsr_entry; } 203 static address key_shuffle_mask_addr() { return _key_shuffle_mask_addr; } 204 static address counter_shuffle_mask_addr() { return _counter_shuffle_mask_addr; } 205 static address crc_by128_masks_addr() { return (address)_crc_by128_masks; } 206 static address ghash_long_swap_mask_addr() { return _ghash_long_swap_mask_addr; } 207 static address ghash_byte_swap_mask_addr() { return _ghash_byte_swap_mask_addr; } 208 static address upper_word_mask_addr() { return _upper_word_mask_addr; } 209 static address shuffle_byte_flip_mask_addr() { return _shuffle_byte_flip_mask_addr; } 210 static address k256_addr() { return _k256_adr; } 211 #ifdef _LP64 212 static address k256_W_addr() { return _k256_W_adr; } 213 static address k512_W_addr() { return _k512_W_addr; } 214 static address pshuffle_byte_flip_mask_addr_sha512() { return _pshuffle_byte_flip_mask_addr_sha512; } 215 static address base64_charset_addr() { return _base64_charset; } 216 static address base64url_charset_addr() { return _url_charset; } 217 static address base64_bswap_mask_addr() { return _bswap_mask; } 218 static address base64_gather_mask_addr() { return _gather_mask; } 219 static address base64_right_shift_mask_addr() { return _right_shift_mask; } 220 static address base64_left_shift_mask_addr() { return _left_shift_mask; } 221 static address base64_and_mask_addr() { return _and_mask; } 222 #endif 223 static address pshuffle_byte_flip_mask_addr() { return _pshuffle_byte_flip_mask_addr; } 224 static void generate_CRC32C_table(bool is_pclmulqdq_supported); 225 static address _ONEHALF_addr() { return _ONEHALF_adr; } 226 static address _P_2_addr() { return _P_2_adr; } 227 static address _SC_4_addr() { return _SC_4_adr; } 228 static address _Ctable_addr() { return _Ctable_adr; } 229 static address _SC_2_addr() { return _SC_2_adr; } 230 static address _SC_3_addr() { return _SC_3_adr; } 231 static address _SC_1_addr() { return _SC_1_adr; } 232 static address _PI_INV_TABLE_addr() { return _PI_INV_TABLE_adr; } 233 static address _PI_4_addr() { return _PI_4_adr; } 234 static address _PI32INV_addr() { return _PI32INV_adr; } 235 static address _SIGN_MASK_addr() { return _SIGN_MASK_adr; } 236 static address _P_1_addr() { return _P_1_adr; } 237 static address _P_3_addr() { return _P_3_adr; } 238 static address _NEG_ZERO_addr() { return _NEG_ZERO_adr; } 239 static address _L_2il0floatpacket_0_addr() { return _L_2il0floatpacket_0_adr; } 240 static address _Pi4Inv_addr() { return _Pi4Inv_adr; } 241 static address _Pi4x3_addr() { return _Pi4x3_adr; } 242 static address _Pi4x4_addr() { return _Pi4x4_adr; } 243 static address _ones_addr() { return _ones_adr; } 244 245 }; 246 247 #endif // CPU_X86_VM_STUBROUTINES_X86_HPP